OK, I got Melina (Pastel BP) a couple of years ago, and she's been eating live mice since she's been born. Recently, I'm trying to switch her from live mice to frozen rats. Last week, I gave her 2 mice and then gave her a med. rat (after rubbing it with a f/t mouse I was gonna give one of my corns); and she ate it. I tried it again today and she only ate the mice. Is there anything I'm doing wrong, or is it just gonna take patience?